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TEXAS INSTRUMENTS  BQ20Z655DBT-R1  BATT GAS GAUGE, LI-ION/POL, 25V, TSSOP44

TEXAS INSTRUMENTS BQ20Z655DBT-R1
Technical Data Sheet (10.20KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The BQ20Z655DBT-R1 is a SBS v1.1 compliant Gas Gauge with LED/LCD drive and Impedance Track™ technology designed for battery-pack or in-system installation. The BQ20Z655-R1 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals. The gauge monitors capacity change, battery impedance, open-circuit voltage and other critical parameters of the battery pack which reports the information to the system host controller over a serial-communication bus. Together with the integrated analog front-end (AFE) short circuit and overload protection, it maximizes functionality and safety while minimizing external component count, cost and size in smart battery circuits. The implemented Impedance Track™ gas gauging technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy.
  • Better than 1% error over the lifetime of the battery
  • Supports smart battery specification SBS V1.1
  • Powerful 8-bit RISC CPU with ultralow power modes
  • Satisfies JEITA guidelines
  • Added flexibility to handle more complex charging profiles
  • Lifetime data logging
  • Supports SHA-1 authentication
  • Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

 

Product Information

Battery Management Function:
Fuel Gauge, Protector
Battery Type:
Li-Ion, Li-Pol
Supply Voltage Min:
4.5V
Supply Voltage Max:
25V
Battery IC Case Style:
TSSOP
No. of Pins:
44Pins
IC Interface Type:
SMBus
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Medical;
  • Test & Measurement;
  • Industrial;
  • Portable Devices;
  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0063

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